Warning of "master not discovered or elected yet", even though I have only one node

I am currently using ElasticSearch 7.2.0 on Windows.

I have only one node so far. When I run elasticsearch.bat, I see the following messages on my console:

[BolverkXR] master not discovered or elected yet, an election requires a node with id [qYXA1FsbRayI6i56WHACvQ], have discovered [] which is not a quorum; discovery will continue using [127.0.0.1:9301, 127.0.0.1:9302, 127.0.0.1:9303, 127.0.0.1:9304, 127.0.0.1:9305, [::1]:9301, [::1]:9302, [::1]:9303, [::1]:9304, [::1]:9305] from hosts providers and [{BolverkXR}{p80_sEr_RhK15YOI-dcQyw}{jlMP87ogT-unm6UMCO5-kA}{127.0.0.1}{127.0.0.1:9300}{ml.machine_memory=8589463552, xpack.installed=true, ml.max_open_jobs=20}] from last-known cluster state; node term 1, last-accepted version 15 in term 1

  1. Where did the ID qYXA1FsbRayI6i56WHACvQ come from?
  2. What should I do to ensure that everything is set up properly, so that the error message no longer appears?

I also cannot connect to ElasticSearch from Kibana, because of the error:

[error][status][plugin:cross_cluster_replication@7.2.0] Status changed from yellow to red - [data] Elasticsearch cluster did not respond with license information.

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